Ring Nebula
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资源简介：
object name: Ring Nebula object type: planetary nebula coordinates: 18 53 35.0967659112, +33 01 44.883287544 (2000) constellation: Lyra alternate names: Messier 57, NGC 6720 observation filters: B, G, R file formats: FITS, PNG observation dates: 2020 June-September telescope: Mittelman Observatories 0.5m at New Mexico Skies
创建时间：
2022-11-29
